/*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrWindowRectsState_DEFINED
#define GrWindowRectsState_DEFINED

#include "src/gpu/ganesh/GrWindowRectangles.h"

class GrWindowRectsState {
public:
    enum class Mode : bool { kExclusive, kInclusive };

    GrWindowRectsState() : fMode(Mode::kExclusive) {}
    GrWindowRectsState(const GrWindowRectangles &windows, Mode mode) : fMode(mode), fWindows(windows) {}

    bool enabled() const
    {
        return Mode::kInclusive == fMode || !fWindows.empty();
    }
    Mode mode() const
    {
        return fMode;
    }
    const GrWindowRectangles &windows() const
    {
        return fWindows;
    }
    int numWindows() const
    {
        return fWindows.count();
    }

    void setDisabled()
    {
        fMode = Mode::kExclusive;
        fWindows.reset();
    }

    void set(const GrWindowRectangles &windows, Mode mode)
    {
        fMode = mode;
        fWindows = windows;
    }

    bool operator == (const GrWindowRectsState &that) const
    {
        if (fMode != that.fMode) {
            return false;
        }
        return fWindows == that.fWindows;
    }
    bool operator != (const GrWindowRectsState &that) const
    {
        return !(*this == that);
    }

private:
    Mode fMode;
    GrWindowRectangles fWindows;
};

#endif
